Exhaust-muffler for explosive-engines.



. 0 nA www? 2 m PATENTED JUNE 28, 1904.

D. UGDEN.

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1 l l l v EXHAUST MUEFLER FOR EXPLOSIVE ENGINES.

APPLIOATION FILED JULY 1s, 190s.

- I|. l M ,C m m m y J m m W E www No MODEL.

UNITED STATES Patented June 28, 1904.

PATENT EEicE.

DORE OGDEN, OF COLUMBUS, INDIANA, ASSIGNOR OF ONE-HALF TO KOERT DUBOIS HAWLEY REAP, OF COLUMBUS, INDIANA.

EXHAUST-NIUFFLER FOR EXPLOSlVE-ENGINES.

SPECIFIGATION-forming part of Letters Patent No. 768,626, dated June 28, 1904.

Application iiled f Lily 13, 1903.

To all whom it may concern;

Be it known that I, DORE OGDEN, a citizen of the United States, residing at Columbus, in the county of kBartholomew and State of Indiana, have invented new and useful Improvements in Exhaust-Muillers for Explosive-Engines; and I do declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which formga part of this specification.

This invention relates to devices for mufiling the sounds at the terminalsof the exhaust-pipes of engines, and it has reference more particularly to mufllers for explosiveengines such as are employed on vehicles.

The objects of theV invention are, first, to provide the most efficient muffler; second, to provide a cheaply-constructed muffler, and, third, to provide a muffler that will be durable and economical in use.

The invention consists in a muffler having an elastic receiver and provided with bailles and adapted to be attached to an exhaust-pipe and to permit the exhaust gases or vapors to slowly escapetherefrom;and the invention consists also in the novel forms of construction and in the novel combination and arrangement of parts, as hereinafter particularly described and claimed. i

Referring to the drawings, Figure l represents an elevation of amuffler constructed substantially in accordance with my invention, portions being broken out to expose inner parts; Fig. 2, a central vertical sectional view of the mufller; Fig. 3, a horizontal sectional view on two planes `on the broken line A A in Fig. 2, the planes being divided by the broken line C O; and Fig. l is a horizontal sectional view on two planes on the broken line B B in Fig. 2, the planes being divided by the broken line D D.

Similar reference characters in -the several figures of the drawings indicate corresponding parts or features.

ln construction the receiver may be rendered elastic in various ways and by various means, the best of which is herein presented as serai No. 165,307. (No model.)

illustrating the invention. A circularmetallic shell (L is employed, to which is attached a bottom b, so as to be water-tight. A top c is attached to the shell and is preferably removable. A band (Z is attached to the shell rz., so as to practically form a part thereof, extending beyond the bottom the end being closed by a 'disk-like head e, attached to the extension, so that a chamber is thereby provided below the bottom At the axis of the shell a is a metallic bar or rod f, which serves to guide'a bell and also to strengthen the whole structure, the bar extending through the top c and also through the bottom/J and the head e, the end portions of the bar having screwthreads. upper end of the bar f at opposite sides of the top c. Nuts 3 and l are connected with suitable packing at opposite sides of the bottom b thereto and to the bar, and nuts 5 and 6 are connected to the lower end of the bar at opposite sides of the head c. An inlet-pipe g is attached to the bottomA extending through the head e, as by means of nuts 7 and 8, and the pipe may Vbe suitably adapted to bc connected tothe exhaust-pipe of an engine, or the bottom may be adapted to be connected directly to the exhaust-pipe, as will be obvious. The extension Z has apertures 9.

Upon the top of the bottom 7 are attached various annular upright and horizontal partitions whereby chambers and passages are formed and baffles are provided through which the escaping gases or vapors must pass to reach the atmosphere, the upright partitions being concentrically arranged and the horizontal partitions being all parallel to one another and to the bottom rlhe central upright partition /L is the smaller in diameter, being tube-like, and is attached to the bottom b, so that its interior becomes a water-chamber, its top beingopen, and the bar f extending through the chamber. The partition extends upwardly a suitable distance, being somewhat shorter than the shell a. A diametrically larger upright partition c' is attached tightly to the bottom 7) and surrounds the partition L, extending to the same height, and between the partitions and v' Nuts l andQ are connected to the is the inlet-orilice of the pipe g, an annular chamber being thus formed to first receive the exhaustgases from the pipe. A third annular upright partition j, diametric'ally larger than the partition c', is also attached tightly to the bottom extending to the same height as the other partitions, the partition j forming, with the shell a, an annularwater-chamber in which a bell operates. The space between the partitions i and e' is obstructed by a suitable number of baffles, in the present case the lower one being an annular horizontal partition la, attached to the upright partitions. Upon the partition ,71: are two short upright partitions Z and m, concentrically arranged, and upon these is an annular horizontal partition n. Two upright circular partitions o and p are placed upon the partition n, and upon these is a horizontal partitions, upon which are two circular upright partitions g and i", to which is attached a horizontal partition, preferably composed of an annular plate t, a layer u of asbestos or similar substance, and a plate fv. If desired, any or all of the partitions above referred to may be likewise composed each of two plates of metal with asbestos or such substance between them, as will be obvious from the foregoing. These partitions between the partitions /i and 71 all have a suitable number of apertures therein, the partition lo having perforations 10 and 11 in planes at opposite sides of the partitions l and m, which have perforations 12 and 13, the partition n having perforations 14 in planes between the partitions 0 and p, which' have perforations 15 and 16, the partition s having perforations 19 and 20 in planes atopposite sides of the partitions q and r, which have perforations 17 and 18. The partition composed of the plates z? u c has perforations 21 in planes between the partitions g and r. Between the partitions il and j are a suitable number of horizontal partitions, as 22, having perforations 23, and 24 having perforations 25. A cap-plate w is attached' to the tops of the partitions la, z', Vand j', and it has perforations my, arranged between the planes of the partitions 7L and c', and it also has perforations 26, arranged between the planes of the partitions z' and j. l

The bell whereby the elasticity of the receiver is attained comprises a top guided by the bar f and sides operating in the waterspace between the shell a and the partition j. As preferably constructed a center piece 27 is mounted on the bar f for guiding the bell, and top plates 28 and 30 are attached to the center piece, with asbestos 29 between the plates. The annular side members 31 and 33, with asbestos 32 between them, are attached to the top plates. The bottom bis provided with an annular cushion 3A, upon which the bell sides normally rest when not in motion. Va-

rious other forms of cushions for the bell may obviously be provided.

A spring 35 is interposed between the bell-top and the top c, adapted to yieldingly resist upward movements of the bell.

A suitable channel, as 36, is usually provided, extending from the partition L to the partition j', whereby the two water-chambers are connected. The channel of course may be arranged below the bottom b.

For the purpose of augmenting the guidebearings for the bell a tube 37 is attached to the center piece 27, extending about the bar f into the central water-chamber and having a bearing-ring in its lower end; but in some cases the center piece 27 may be made suiiiciently long for the purpose without requiring the tube extension.

In the bottom bare a suitable number of perforations 38, providing exhaust-passages to the chamber below the bottom.

When the muier is complete, the annular water-chambers are nearly filled with water or other suitable liquid which may be replenished,as occasion may require,by removing the top 0, or a suitable filling-plug or a tube may of course be provided.

In practical use the muffler is to be set uprightly, and the exhaust-gases will rise, as indicated by the arrows, from the pipe g through the various baiiie constructions described between the partitions /L and a' and through the top w into the space between the top of the liquid and the top of the bell. With a slow rate of exhaust the bell may not rise, the gases escaping slowly through the baffles between the partitions vl and j' into the chamber below the bottom b and out through the apertures 9 to the atmosphere. Vhen increase of engine speed produces more rapid and forcible exhausts, a slight pressure will result beneath the bell, which will rise, more or less, against the pressure of the spring 35, thus prevent' ing choking of the mufiier and consequent back pressure against the engine-piston. The spring 35 is comparatively weak, so that the bell may rise considerably to increase the receiving-space temporarily, and as the pressure therein fluctuates the bell will acquire reciprocating motions, descending when the pressure under it falls.

Having thus described the invention, what I'claim as new is 1. A mufier including an annular chamber, a yielding receiver having sides extending into the annular chamber, and partitions attached to the bottom of the chamber and extending into the receiver and encircled by the annular chamber.

2. A muffler including an annular chamber, a yielding receiver having imperforate sides extending into the annular chamber, and baffling-partitions supported bythe bottom of the chamber and situated within the receiver and surrounded by the chamber.

3. A muflier including a shell having a bottom, annular partitions attached to the bottom TOO IZO

mounted slidingly on the bar within the shell and extending into the annular chamber.

5. A muiier including a shell havinga bottom, a movable bell, a guide for the bell, a

spring normally pressing the bell toward the lgoltltom of the shell, and a liquid seal for the 6. A muffler including a shell having a bottom, a movable bell in the shell, a guide for the bell, a liquid seal for the bell, and a cushion for the bell.

7. A mu'ler including a shell provided with an annular water-chamber, an elastic receiver comprising a spring-pressed bell mounted in the shell and extending into the water-chamber, inlet-conduits leading to the interior of the bell above the water-chamber, and outletconduits leading from the interior of the bell above the water-chamber to the exteriorV of the mutlier.

8. A muier including a shell having a bottom, annular partitions attached to the bottom within the shell, baiies formed of metallic substances and sound-deadening substances mounted between the partitions, a movable bell extending above and about the partitions, llilquid seal for the bell, and a guide for the 9. A mutller including a shell having a bottom, annular partitions attached to the bottom within the shell, a center guide-bar attached to the bottom, a bell mounted on the guidebar and comprising metallic and sound-deadeningsubstances and extending over and about the partitions, a liquid seal for the bell, inletconduits leading to the interior of the bell above the liquid seal, and outlet-conduits leading from the interior of the bell above the water seal to the exterior of the muilier.

l0. A mulier comprising a shell having a bottom and also having a head beyond the bottom and perforations between the bottom and the head, an inlet-pipe attached to the bottom and extending through the head, a top attached to the shell, upright annular partitions arranged concentrically upon the bottom, haii-les mounted between the upright partitions, a bar attached to the bottom and also to the top of the shell, a movable bell mounted on the bar, a spring mounted on the bar between the bell and the top of the shell, a cushion for the bell on the bottom oi' the shell, a liquid seal for the bell, and outlet-conduits extending from the interior of the bell above the water seal to the space between the bottom and the head, substantially as set forth.

ll. In a mufiier, the combination with an exhaust-pipe, of a foundation-plate attached to the pipe, concentrically-arranged partitions rigidly attached to the foundation-plate, mui'- fling-partitions arranged between the concentricallyarranged partitions and supported thereby, and a yielding imperi'orate receiver extending over and about the partitions.

12. In a muffler, the combination with an exhaust-pipe, of a foundation-plate attached to the pipe, a shell attached to the foundationplate, concentricallyarranged imperforate partitions rigidly attached to the foundationplate, muiing-partitions arranged between the concentrically arranged partitions and supported thereby, a movable imperforate bell extending over and about all of the partitions within the shell, a spring pressing the bell, and outlet-passages between the interior of the bell above the partitions and the atmosphere.

In testimony whereof I aHix my signature in presence 'of two witnesses.

DORE OGDEN.

IVitnesses:

JOHN LITTLE MORRIS, A. W. GosHoRN. 

